Trouble logging in?If you can't remember your password or are having trouble logging in, you will have to reset your password. If you have trouble resetting your password (for example, if you lost access to the original email address), please do not start posting with a new account, as this is against the forum rules. If you create a temporary account, please contact us right away via Forum Support, and send us any information you can about your original account, such as the account name and any email address that may have been associated with it.

1) iPhone MGS, Kojima has expressed interest in the iPhone before. This seems like the most likely option.
2) Metal Gear Acid due to how they normally spell it, however this seems unlikely due to the website url as msot pointed out is 'MGST'.
3) A Wii MGS. The power button heavily resemble the Wii's power icons, two i's could make up the ii part of Wii and the remote actually has a exclamation mark on it too if you ever noticed. On top of that with Snake's recent appearance in Brawl, it wouldn't be unusual for this to be some kind of obligation fufilled since there hasn't been a Wii Metal Gear game yet. It'd also be strange not to see a MG game on the highest selling console right now.
4) Maybe DSi, however I find this one the biggest stretch.

360 is highly unlikely, Kojima's expressed disinterest in developing for it multiple times...

1) iPhone MGS, Kojima has expressed interest in the iPhone before. This seems like the most likely option.
2) Metal Gear Acid due to how they normally spell it, however this seems unlikely due to the website url as msot pointed out is 'MGST'.
3) A Wii MGS. The power button heavily resemble the Wii's power icons, two i's could make up the ii part of Wii and the remote actually has a exclamation mark on it too if you ever noticed. On top of that with Snake's recent appearance in Brawl, it wouldn't be unusual for this to be some kind of obligation fufilled since there hasn't been a Wii Metal Gear game yet. It'd also be strange not to see a MG game on the highest selling console right now.
4) Maybe DSi, however I find this one the biggest stretch.

360 is highly unlikely, Kojima's expressed disinterest in developing for it multiple times...

DS or Wii would be fantastic!
But if there is another MGS game, it's either a spin-off, or a port. Kojima said he was finished with the Metal Gear saga. he won't direct anymore...